The analysis of chloroplast gene characteristics in Alpinia japonica(Thunb.)Miq.is of great significance for developing relevant genetic resources.The high-throughput sequencing and bioinformatic research were perform...The analysis of chloroplast gene characteristics in Alpinia japonica(Thunb.)Miq.is of great significance for developing relevant genetic resources.The high-throughput sequencing and bioinformatic research were performed to analyze the chloroplast genome characteristics of A.japonica.The total chloroplast genome length of A.japonica was 161,906 bp,with a typical circular tetrameric structure.And 133 genes were annotated,comprising 87 protein-coding,38 tRNA,and 8 rRNA genes.Furthermore,22 genes contained two copies,and 18 genes owned introns.Repeat sequence analysis showed that it contains 321 simple sequence repeats(SSRs)and 37 long segment repeats.Compared with the chloroplast genomes of eight representative plants in the genus Alpinia,the gene structure,type,and quantity were relatively conservative.Rps12 was the highest variation site in the entire chloroplast gene.A phylogenetic tree showed that the genus Alpinia was the most closely related to the genus Amomum.Meanwhile,A.japonica is the most closely related to Alpinia chinensis belonging to the genus Alpinia.Overall,the chloroplast genome of a new species was reported in the genus Alpinia,and a basis was provided for the utilization of Alpinia plants as a medical resource.展开更多
目的为山姜鉴别和制定质量标准奠定基础。方法采用来源鉴别、性状鉴别、显微鉴别对山姜进行鉴别研究。结果株高35~68 c m,叶2~5片,狭长椭圆形,长25~40 cm,宽4~7 cm,叶背被短柔毛,近无柄或具长达2 c m叶柄;总状花絮顶生,长15~27 cm,花絮...目的为山姜鉴别和制定质量标准奠定基础。方法采用来源鉴别、性状鉴别、显微鉴别对山姜进行鉴别研究。结果株高35~68 c m,叶2~5片,狭长椭圆形,长25~40 cm,宽4~7 cm,叶背被短柔毛,近无柄或具长达2 c m叶柄;总状花絮顶生,长15~27 cm,花絮轴被绒毛。果实球形,直径1~1.5 cm,被短柔毛,顶有萼筒。根茎圆柱形,分枝和横生,具疙瘩环带,表面稍皱,黄褐色;不易折断,断面纤维性;表皮细胞长方形,散在油细胞,草酸钙晶体,维管束;形成层明显,内皮层细胞形成凯氏带。叶柄表皮含维管束和月牙形中柱鞘纤维;内皮层油室可见,偶见草酸钙晶体;髓部呈六边形;果实横切面见大量石细胞及草酸钙晶体。叶片上表皮无气孔,下表皮具大量环式气孔。晶鞘纤维,石细胞,螺纹导管,草酸钙方晶,草酸钙簇晶,淀粉粒等为根茎粉末特征。结论此鉴别方法准确、可靠、简单,明确了山姜的鉴别特征,对山姜具有鉴别意义。展开更多
基金The Natural Science Foundation of China(32060078)the Natural Science Foundation of Jiangxi(20171BAB214024,20202BABL 203044)+4 种基金the Special Program of Science and Technology Cooperation of Jiangxi Provincial Department of Science and Technology(20212BDH81022)The Education Reform Program of Jiangxi Provincial Department of Education(JXJG-22-23-3,JXJG-23-23-5)the“Biology and Medicine”Discipline Construction Project of Nanchang Normal University(100/20149)Jiangxi Province Key Laboratory of Oil Crops Biology(YLKFKT202203)Education Reform Program of Nanchang Normal University(NSJG-21-25).
文摘The analysis of chloroplast gene characteristics in Alpinia japonica(Thunb.)Miq.is of great significance for developing relevant genetic resources.The high-throughput sequencing and bioinformatic research were performed to analyze the chloroplast genome characteristics of A.japonica.The total chloroplast genome length of A.japonica was 161,906 bp,with a typical circular tetrameric structure.And 133 genes were annotated,comprising 87 protein-coding,38 tRNA,and 8 rRNA genes.Furthermore,22 genes contained two copies,and 18 genes owned introns.Repeat sequence analysis showed that it contains 321 simple sequence repeats(SSRs)and 37 long segment repeats.Compared with the chloroplast genomes of eight representative plants in the genus Alpinia,the gene structure,type,and quantity were relatively conservative.Rps12 was the highest variation site in the entire chloroplast gene.A phylogenetic tree showed that the genus Alpinia was the most closely related to the genus Amomum.Meanwhile,A.japonica is the most closely related to Alpinia chinensis belonging to the genus Alpinia.Overall,the chloroplast genome of a new species was reported in the genus Alpinia,and a basis was provided for the utilization of Alpinia plants as a medical resource.
文摘目的为山姜鉴别和制定质量标准奠定基础。方法采用来源鉴别、性状鉴别、显微鉴别对山姜进行鉴别研究。结果株高35~68 c m,叶2~5片,狭长椭圆形,长25~40 cm,宽4~7 cm,叶背被短柔毛,近无柄或具长达2 c m叶柄;总状花絮顶生,长15~27 cm,花絮轴被绒毛。果实球形,直径1~1.5 cm,被短柔毛,顶有萼筒。根茎圆柱形,分枝和横生,具疙瘩环带,表面稍皱,黄褐色;不易折断,断面纤维性;表皮细胞长方形,散在油细胞,草酸钙晶体,维管束;形成层明显,内皮层细胞形成凯氏带。叶柄表皮含维管束和月牙形中柱鞘纤维;内皮层油室可见,偶见草酸钙晶体;髓部呈六边形;果实横切面见大量石细胞及草酸钙晶体。叶片上表皮无气孔,下表皮具大量环式气孔。晶鞘纤维,石细胞,螺纹导管,草酸钙方晶,草酸钙簇晶,淀粉粒等为根茎粉末特征。结论此鉴别方法准确、可靠、简单,明确了山姜的鉴别特征,对山姜具有鉴别意义。